CodeKit
You can set processing options for a file:
  1. In Project Settings
  2. In the File Inspector

The one you choose depends on whether you want to adjust settings for one file, or all files of that type.


In Project Settings

A screenshot of the project settings button from the CodeKit window.

Click the gear-shaped button on the left side of CodeKit's window to open Project Settings.

Next, choose the language for which you want to adjust options. You'll see a screen like this:

A screenshot of the project settings area in the CodeKit window.

When you change an option in Project Settings, that change is applied to all files of that type in the Project. For example, if we selected a different Output Style in the window above, all Sass files in the project would adopt the change.


In The File Inspector

Some options can be set on a file-by-file basis as well. Select a file and look at the Inspector Pane on the right:

A screenshot of the sass inspector in the codekit window

Changing an option here affects only the selected file.

Keep in mind that if you change an option in Project Settings, any custom values you have set for that option on a file-by-file basis will be overwritten.


Set Defaults

You can tell CodeKit to start new projects with your custom settings. See Defaults For New Projects.